#include <iostream>
#include <iomanip>
#include <cstdlib>
using namespace std;

int main() {
    double principal;
    int years;
    double ratePercent;

    cout << "Enter principal amount: ";
    if (!(cin >> principal)) return EXIT_FAILURE;

    cout << "Enter number of years: ";
    if (!(cin >> years)) return EXIT_FAILURE;

    cout << "Enter annual interest rate (percent): ";
    if (!(cin >> ratePercent)) return EXIT_FAILURE;

    double amount = principal;

    for (int y = 1; y <= years; ++y) {
        amount *= (1.0 + ratePercent / 100.0);
    }

    cout << fixed << setprecision(2);
    cout << "Starting with $" << principal << ", after "
         << years << " years at " << ratePercent << "%, you will have $"
         << amount << "." << endl;

    return EXIT_SUCCESS;
}